Escapement-actuating mechanism of typographical composing machines



April 24, 1928. 1,666,944

C. MUEHLEISEN ESCAPEMENT ACTUATING MECHANISM OF TYPOGRAPHICAL COMPOSING MACHINES Filed Sept. 25 1926 Patented Apr. 24, 1928 'cARL MUEnLEI'sEN, "or 32mm, QGERMANY, ASSIGNOR' T marro /surname "Lmo I 1,666,944 P KTENT ESCAPEMENT-AGTUATING OI E EPUGRAPHIGAL COM PO SING M ACH INBS.

Application=filedr'8eptcmber- 25; i926,r8c'ria1z- No; 187,771; and: in Germany October 6,1 1925.

4 For effecting the .release zof matrices i from the .m-agazines of ltypographical acorn-posing machines ithere have i ibeen used -mechanically actuated meansacomprising eccentrics :5 or cams located in.pivotedyokes,each-such eccentric, -when-the respective ikeyeis :struck, coming I into operative contact withrrarccontinuously rotating roller. iiInx suchM-an arrangement I the cam; yokes perform I a swing c ing. movement about'2the1r;lp1vo t and lralses the escapement reed-s eforeffecting ithe re lease :-;of 'ithe matrices. -.-It "has heretofore been proposed to positien the icam carrying yokes @upon' theRkeyboard framenand irender them.- interchangeable, andz-forathat -purpwe .the ylok es arev formed! 'withhook-"shaped parts engaging iwithfa-commoni pivot rod, the said .yokesibeingrheldrin;positionbyta:ibar ior;rails extending over thehook-shaped; parts. This arrangement also served for. taking-pp .the surplus: movement beyondithati-necessarynfor efl ectingaa vrsatisiiactor yr:inusnzrix. release, Eor

this purpose spring; pressed pins vwere pmvidedllIlr the :aforesaid. ibar engaging over the ,hook-shaped parts the .said pins 'permi-tting thvllOOkSatOzbG raised-when excess movement .oocurred.-

-With sucharrangements there ":was a possibility of individualvsprings jamming or-becoming inoperative.

' I In the-event oi thishappening: it was necessaryto-memoVe the whole-ibar .-and-.to ;sub-' :stituteethe defectivesprings-ong pins by? others in proper conditiont VVhen ft-doing this a number ofthe otherisprings and, pins would be displaced, :so iithat it the re-assemblage of .the parts I ;presented considerable ad-rfieulty and absorbedmaggreatw deal of time.

- .:'I"-h'e; resent invention 2overfcomes this 1 dif- .ficulty: y arrangingithe individual pressure ;.pins:sothat-theyanaybe interchangeably-l inserted in the bar or railseparately-val d each independently of Fall-the: others.

The drawing-illustrates by way of example rand .'in"this drawing-: 7

v Figure 1- is a, diagrammatic illustration of Jthe releasing tmechanism; V

AiETigure Q, .iswa portion oft-Figure- ;1, showing -the railiand= one-of thej;;pressure;pins 1, in posi- Mtions:vdifierent from those in which theyl-are :SllOWI1: lIl Eigu-reLanil 'l .igure 3vis :a' detail view ofone 0f the pressure-pins and ofits spring.

.one constructional. form of the invention,

V The vkeyi lever :formedrimthe usual-manner raises the key! rod when .thez'key abuttonlisi struck, .thus :causing-a K tumbler C" to turn about itspivotal axis. The free warm 1 of the tumbler which is located beneaththe tinuouslyirotatingroller Fand to beeaetur ated thereby. This causes the cam yoke D to :oscillate about the pivotrod G, so that the rear free end of. the yokec-D 'wi'll'beraised and cause the .esca'penrent' reed .H also to-move upwardly. This reed rengagesjthe escapemen't lever 'Ilso'as-to a release the-foremost matrix K storedin the maga'zine and permit said matrix-toldescendnin the-known manner into the r-assembler. QThe .rforW-ard v extremity of 1 the cam ;yoke fD engaging the pivot rod G, :is ,shaped in the 1 known manner like :a hook, so that it straddles the said rod with a capacityiof sliding-up and downithereon. In order to retain this shook-like I extremity in its 1 lowermost a position a'stride the pivot G,, pressure; -pinsa are; provided, Whose lower ends penetrate slotsrb in avail or bracket 0, whichiis ipivotally mountedon the rod Gi-and is:ofU-shapeior-channel.form in section. The lowenflange' of therail c is formed with I slots ,1); previously; mentioned, whilst the uppert'fiange eds .formed with recesses-d open atone side, -.for;receivinggthexupper portions of-rthe -pressure 1 pinsa. 1 Each pressure pin engages 'with ta lug g.- on .said zpin, so as-to prevent- .the spring :-.from accidentally leavinglthe 'pressuregpin. Each of the pre'ssure, pins ;-is1,-also provided with :a projection h is .eneircled by a spring sf whose "lower end towardsthe-open side. of therail .c, whilst the opposite edgesiare curved. j 7

By. 5 the foregoing means it i is c possible not "onl ye to :tilt the mail 0 ,from the position shown in Figure 1 to that :shown in Figure 2 without relative disturbance of the pins a in said rail, but also: to ensure that when the I pins are-inoperative position 1 as in Figbetween the projectionswh-rand the lower "flange ao'f the -;.bracket-cc, the 1 upper ends-of said ap'ins r'Shflll bQ PIBSSfid against the closed .ends ofrthe; recesses dwto retain the ,pinsi-n 105. '.ure;l','throug'h-the one sided; pressure exerted v .i and cam yokeD when thetl-shaped rail 0 is tilted over into the position shown in Figure 2 and when all of the cam yokesmay be so lifted out, and secondly the pressure pins serve to take up excess movement when-for instance the upward limit of HIOVBlIlQlli) of 2-: the respective escapement reed H is reached,

the further swinging movement of the cam yoke D being aboutthe point of contact oi said yoke and reed, the hook-shaped portion thus moving upwards upon the pivotrod G pushing the pressure pin upwardly against the action of its spring i The subject'matter of the application differs from the arrangements heretofore proposed, which operate in exactly the same manner, by the fact that the pressure pin'is shaped not like a round pin but asia flat member which can be 'manu'factured by stamping or such like simple operation. Moreover, and in consequence of the positioning of the pressure pin in the ti -shaped rail 0, the removal and exchange'of single pins, in the manner shown in Figure 2, can be easily e'tl'ected inasmuch every pin can be removed singly independently of and without disturbing the other pins.

The details of the before described arrangement may be varied within the scope of the invention, inasmuch as the recesses (Z in the upper flange of the bracket 0 may be closed and in such a construction the necessary changes would be made by raising the pressure pins until their lower ends are clear of the slots I) and free to be removed frontwise; Instead of the rail 0 being of channel shape it may be of any other suitable form as, so far as the invention iscon corned, it is only essential that the interchangeability of individual pressure pins be secured through the separate positioning of the same in slots, holes or the like of a com- 'mon rail. Further than this, the rail 0, instead of being pivoted in the manner represented could be screwed or otherwise detachably secured in position;

Having described my invention, I declare that what I claim and desire to secure b Letters Patent is:-

' 1. In escapement-actuating mechanism of atypographical composing machine, the combination with aseries of pivoted camcarrying yokes and a barmovably mounted above the pivots of said yokes, of pins carried by said bar adapted to yieldinglygbear upon the cam-carrying yokes and a spring adapted to retain each of said pins in posi- 1,666,944 .i f H tion on the bar and in contact with the respective cam-carrying yoke, each' pin together with its spring being removable from and replaceable on the bar'as an individual unit without disturbing the others when said bar is moved out of its operative position above the yokes.

a typographical composing machine, the

combination with a series of pivoted camcarrying yokes and a bar movably mounted above the plvots of said yokes, of pms'carried by said bar adapted to yieldingly bear upon the cam-carrying,yokes,a spring encircling each pin and adapted to retain the pin on the bar and in contact with the respective cam-carrying yoke, each pin together with its "spring being removable from and replaceable on the bar as an individual unit without disturbing "the others when the'ba'r is moved out of its operative position above the yokes, and a lug on each pin adapted to be engaged by the encircling spring'to prevent accidental detachment'of the spring when the pin is removed.

4. In. escapement-actuating mechanism of a typographical composing machinefthe combination with a series of pivoted cam carrying yokes, of a U-shaped bar having its two flanges extending above the pivots of theyokes the upper flangebeing recessed and the lower flange slotted, pins supported with their upper and lower portions in the recesses and slots respectively, a spring adapted to maintain the lower end of each pin in contact with a cam yoke, and an abutment on each pin atone side only adapted to engage the lower flange. I

p 5. In escapement-actuating mechanism of a typographical composing machine, the combination with a seriesjof pivoted camcarryingyokes, of a U-shaped bar having its two flanges "extending above the pivots of the yokes the upper flange being recessed and the lower flange slotted, pins supported with their upper and lower portions in the recesses and slots respectively, a spring encircling each pin and adapted to maintain the lower end of that pin in contact with a I each pin adapted to engage the lower flange.

6. In escapement-actuating mechanism of a typographical composing machine, the

combination with a series of pivoted camcarrying yokes, of a U-shaped bar having its two flanges extending abovethe pivots of the yokes the upper flange being recessed and the lower flange slotted, fiat pins supported with their upperand lowerportions spring and an, abutment on' the opposite side of each pin adapted to flange.

7. In escapement-actuating mechanism of a typographical composing machine, the combination with a series of cam-carrying engage the lower yokes and a commonpivot rod for said yokes,

of a U-shaped bar pivotally attached to and having its two flanges extending above said rod, the upper flange being recessed and the lower flange slotted, flat'pins supported with their upper and lower portions in said recesses and slots respectively a spring encircling each pin and adapted to maintain; 'the lower end of the pin in contact with a cam yoke and the upper end of the pin within the'respective recess, an abutment on one side of each pin adapted to engage the lower flange, a lug on the opposite side of each pin adapted to be engaged by the spring, and a cushion at the openen'd of each recessadapted to prevent accidental displacement of the upper portion of the respective pin.

In testimony whereof I have affixed my signature hereunto.

CARL MUEHLEISEN. Y 

